@misc{indiciae4a46317c57d9, title = {Endogenous opiates: 1983.}, author = {G A Olson and R D Olson and A J Kastin}, doi = {10.1016/0196-9781(84)90125-6}, url = {https://pubmed.ncbi.nlm.nih.gov/6095224/}, note = {Source identifier: 6095224} }